Where does “Wilbur” come from?

Wilbur is an English name derived from Old English Wilburh, itself composed of Old English wil combined with an uncertain second element.

Ancestry of “Wilbur”, step by step

Step	Language	Word	Meaning
1	Old English	Wilburg	—
2	Old English	burh	Alternative form of burg; fortress; hill
3	Old English	burg	city; town; a fortified place: stronghold, fort,...
4	Proto-Germanic	burgz	fortification, stronghold; city
5	Proto-Indo-European	bʰr̥ǵʰ-	—

Wilbur — Etymology, Origin & Word History | Etymology Explorer